/* Tuple object interface */#ifndef Py_TUPLEOBJECT_H#define Py_TUPLEOBJECT_H#ifdef __cplusplusextern"C"{#endif/*Another generally useful object type is a tuple of object pointers.For Python, this is an immutable type. C code can change the tuple items(but not their number), and even use tuples are general-purpose arrays ofobject references, but in general only brand new tuples should be mutated,not ones that might already have been exposed to Python code.*** WARNING *** PyTuple_SetItem does not increment the new item's referencecount, but does decrement the reference count of the item it replaces,if not nil. It does *decrement* the reference count if it is *not*inserted in the tuple. Similarly, PyTuple_GetItem does not increment thereturned item's reference count.*/#ifndef Py_LIMITED_APItypedefstruct{PyObject_VAR_HEADPyObject*ob_item[1];/* ob_item contains space for 'ob_size' elements. * Items must normally not be NULL, except during construction when * the tuple is not yet visible outside the function that builds it. */}PyTupleObject;#endifPyAPI_DATA(PyTypeObject)PyTuple_Type;PyAPI_DATA(PyTypeObject)PyTupleIter_Type;#define PyTuple_Check(op) \ PyType_FastSubclass(Py_TYPE(op), Py_TPFLAGS_TUPLE_SUBCLASS)#define PyTuple_CheckExact(op) (Py_TYPE(op) == &PyTuple_Type)PyAPI_FUNC(PyObject*)PyTuple_New(Py_ssize_tsize);PyAPI_FUNC(Py_ssize_t)PyTuple_Size(PyObject*);PyAPI_FUNC(PyObject*)PyTuple_GetItem(PyObject*,Py_ssize_t);PyAPI_FUNC(int)PyTuple_SetItem(PyObject*,Py_ssize_t,PyObject*);PyAPI_FUNC(PyObject*)PyTuple_GetSlice(PyObject*,Py_ssize_t,Py_ssize_t);#ifndef Py_LIMITED_APIPyAPI_FUNC(int)_PyTuple_Resize(PyObject**,Py_ssize_t);#endifPyAPI_FUNC(PyObject*)PyTuple_Pack(Py_ssize_t,...);#ifndef Py_LIMITED_APIPyAPI_FUNC(void)_PyTuple_MaybeUntrack(PyObject*);#endif/* Macro, trading safety for speed */#ifndef Py_LIMITED_API#define PyTuple_GET_ITEM(op, i) (((PyTupleObject *)(op))->ob_item[i])#define PyTuple_GET_SIZE(op) Py_SIZE(op)/* Macro, *only* to be used to fill in brand new tuples */#define PyTuple_SET_ITEM(op, i, v) (((PyTupleObject *)(op))->ob_item[i] = v)#endifPyAPI_FUNC(int)PyTuple_ClearFreeList(void);#ifdef __cplusplus}#endif#endif /* !Py_TUPLEOBJECT_H */